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dlyfull universal battery tester: lcd display & digital voltage resistance checker for aa aaa c d 9v 12v 18650 cr123a 2cr5 cr2032 cells logo

Dlyfull Universal Battery Tester: LCD Display & Digital Voltage Resistance Checker For AA AAA C D 9V 12V 18650 CR123A 2CR5 CR2032 Cells Review

27

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Average

Revainrating 4 out of 5  
Rating 
3.9
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Details

BrandDLYFULL
Power SourceBattery Powered
StyleDigital
ColorRed, Black
Measurement TypeVoltmeter

Description of Dlyfull Universal Battery Tester: LCD Display & Digital Voltage Resistance Checker For AA AAA C D 9V 12V 18650 CR123A 2CR5 CR2032 Cells

★ WIDE COMPATIBILITY: The easy-to-use battery tester with test leads, not only works all common batteries but also has a quality feel ensures hold up to long use. It fully works with A, AA, AAA, AAAA, C, SC, D, 9V, 3.7V Li-ion 26650, 21700, 18650, 16340(CR123), 10440, CR2, CRV3, 2CR5, CR-P2, A10, A13, and also handles a very wide range of button cells(LR621, CR2032) etc. ★ LARGE LCD SCREEN: Fully and clearly informed about the battery under test, it helps you easily and quickly finds out how much power your battery has to determine if they are charged or need replacement. Get a longer battery lifespan by not overcharging partially full rechargeable batteries. ★ RELIABLE & MULTIFUNCTIONAL: With its high ability to detect battery capacity percentage, battery voltage, and battery internal resistance, the precise universal battery meter is great for finding out if your EDC devices need new batteries or if it was device faulty. Such as kids' toys, flashlights, controllers, cameras, etc. ★ PORTABLE & EASILY USE: A versatile digital battery voltmeter that is easy to use and remarkably handy size. No need to insert your test battery into any bays, just selecting the corresponding voltage via the rotary dial and then connect the contacts well through the test leads and the digital checker will quickly provide you a reliable and accurate source of energy your test battery. ★ WHAT YOU GET: Dlyfull battery health tester & checker, 2x 1.5V AAA batteries(pre-install), welcome guide, and our worry-free 18 months warranty, no hassles friendly customer service and lifetime technical support.

Reviews

Global ratings 27
  • 5
    12
  • 4
    8
  • 3
    2
  • 2
    2
  • 1
    3

Type of review

Revainrating 3 out of 5

Handling the battery tester was cumbersome.

I was looking forward to giving this tester a good workout since I had a box of batteries that needed testing. Looking down on the tester the display was easy to read and interpret, but when viewing at an angle, the glare made it hard to read. If the display were tilted or had a stand, that would have helped.The unit is noticeably light and is constructed of a hard plastic case without any rubber pads on the back to keep it from sliding. Manipulating the leads to read a battery causes the case…

Pros
  • So far it works ok. It needs a pull out stand on the back so it doesn't lay flat.
Cons
  • Very cheap, inaccurate I do not recommend

Revainrating 4 out of 5

Seems to work. for my opinion

I dont know how accurate the readings are but they are fairly repeatable. Testing various good and not so good batteries I have showed more or less resistance as expected. One reviewer says it puts no load on the battery because it displays the same voltage as a regular multimeter, this is not true. The displayed voltage is the unloaded voltage but it does put a load on to test the resistance. I put a current meter in series and it uses a few short pulses of load to do its calculations.

Pros
  • It eliminates the need to guess the remaining life of a battery
Cons
  • The product may not be able to test the voltage of batteries that are installed in an electronic device.

Revainrating 4 out of 5

Better way to test batteries

Overall nice battery tester. This tester displays the 'Internal Resistance' value, which is helpful to determine the quality of the battery and how well it will perform. It's capable of testing many different batteries(sizes, volts, chemistry types). I was able to quickly check my collection of 18650, 14500, AA, AAA batteries.I would have giving 5 stars; however, minor improvments are needed: (1) missing a stand which would help with viewing the display. (2) the wires/leads are too stiff making

Pros
  • no answer
Cons
  • The tester may not have a long battery life.

Revainrating 4 out of 5

Well worth the higher price

My previous, cheap battery tester accomplished nothing. This one is versatile and accurate. Since one uses this tester by holding electrodes in both hands and touching them to the battery, I'm having some trouble keeping the battery still, since my desk is not perfectly level. Somebody more inventive or practical than I am will no doubt find the solution.

Pros
  • ★ PORTABLE & EASILY USE: A versatile digital battery voltmeter that is easy to use and remarkably handy size. No need to insert your test battery into any bays, just selecting the corresponding voltage via the rotary dial and then connect the contacts well through the test leads and the digital checker will quickly provide you a reliable and accurate source of energy your test battery.
Cons
  • The battery tester may not indicate the percentage of charge left accurately.

Revainrating 5 out of 5

Good for most small batteries

Exactly what I was looking for in a battery tester. Not complicated to use and has most of the small batteries. Next version upgrade should include more of the Lithium batteries, but this one works great for the alkaline batteries. Better than the old analog needle good (green) or bad (red) battery tester.

Pros
  • Nothing
Cons
  • The product may be too expensive for some.

Revainrating 5 out of 5

Just what I needed to check Eneloops

Out of my 20 or so 1.2 volt AA Eneloops, all but 5 or 6 tested with less than 50 mOhms resistance. But they all read out above 1.3 volts. I read that high resistance gives poor battery performance on high draw applications. So not wanting to mix may "marginal" higher resistance batteries with the good batteries or wonder why some 3 or 4 battery applications don't work well, I got rid of the high resistance batteries. The "high resistance" batteries read out on this meter anywhere between 150…

Pros
  • ★ WHAT YOU GET: Dlyfull battery health tester & checker, 2x 1.5V AAA batteries(pre-install), welcome guide, and our worry-free 18 months warranty, no hassles friendly customer service and lifetime technical support.
Cons
  • The battery tester may not be user-friendly for beginners.

What a game changer when it comes to battery testers. Tired of not finding a tester that barely works, and tired of false readings. Look no further.This tester comes up as 5 stars in my book. Gives you a very straight forward readout with no false readings. Works every time. Give this tester a try. Highly recommend it. Easy to use.

Pros
  • Battery Testers
Cons
  • The product may require regular recalibration to maintain accuracy.

Revainrating 5 out of 5

Works perfectly and is surprisingly accurate for the price.

As an electronic engineer I a was a little bit skeptical that this meter would read the batteries internal resistance (ESR ) and the remaining life of the battery accurately. After running some tests I am very impressed with the meters performance.Some results vs a Fluke 87V for voltage and a DE-5000 LCR meter for ESR are pretty good. I did some reading and the ESR numbers are right in line with the Data charts given by Energizer.Brand new EBL AA Battery (Voltage Read in parallel with the Fluke

Pros
  • Was a gift for my son
Cons
  • The tester may not be reliable and may produce inconsistent results.

I only dislike the fumbling around with 1 battery and 2 wires. Accurate.The shipping service was better than great! The tester may not work with all types of batteries..

Pros
  • It works very well only problem when testing smaller batteries the cable Are awkward to keep them stable
Cons
  • The tester may not work with all types of batteries.

Revainrating 1 out of 5

Cannot Provide a Representative Load for Accurate Testing

Nice looking product, but basically a glorified Voltage Meter with hard to read lettering and poorly translated instruction manual.It provides the same high resistance load (10 K ohms) for all battery types, and cannot accurately test batteries that are on the edge of failing, especially larger types like C and D cells.

Pros
  • Easy to use— Just what I was looking for. A simple battery tester
Cons
  • Inaccurate

could use a backlite and the numbers become hard to read if laid flat on table. The wires come out the bottom, so that makes it hard to lean against anything unless it's on it's side. So a bit obtuse to use and read while holding both contacts to the battery but it does the job. I do like the retracting contact ends.

Pros
  • Best small battery tester I’ve ever owned.
Cons
  • The product may not be easy to carry around for on-the-go testing.

Revainrating 5 out of 5

A Capable, Informative Battery Tester

There are battery testers on the market, but not all are accurate, easy to use or even do a good job. As a result, up to now I’ve been using a standard Digital Multimeter (DMM) to test my batteries. This works, but it only tests the battery’s voltage at no load. Marginal batteries may show full or nearly full voltage at no load but fail when placed in a real device.So all this time I’ve wondered when someone would come out with a battery tester in multimeter form. Finally, Dlyfull has offered…

Pros
  • Its wide range of capabilities make it a valuable addition to any household
Cons
  • The tester may not be able to test rechargeable batteries.

Revainrating 5 out of 5

Great product. Did what I had hoped.

It has a set amount of battery input options. But can’t be programed for all battery types or you may burn it out if you force more then it can handle. I only need it for 3.7v and does Great! It also work with all standard household batteries. Nothing larger like 12 volt car or lithium. 3.7 lithium however is not a problem.

Pros
  • Versatile, a little awkward to use. Cannot comment on accuracy - nothing to measure against.
Cons
  • It is everything that I expected.

Revainrating 4 out of 5

Works as advertised

For the price it is an excellent tool. For 2 or 3 bucks more it would be nice to have a lighted display; since I'm up and years at it is hard to see. Great tool.

Pros
  • It can help maintain the efficiency and longevity of electronic devices by ensuring proper battery use
Cons
  • The battery tester may not be able to test the internal resistance of batteries.

Revainrating 3 out of 5

Stopped working after 3rd use

Not sure why all the positive reviews, but my tester stopped working almost immediately. Only took 3 tries and it didn't register any ohms at all.

Pros
  • {}
Cons
  • The product may not be suitable for professional use.

Revainrating 5 out of 5

Reliable and versatile

Love this product—it’s reliable and saves money throwing away good batteries instead of bad appliances. Living in a hurricane state, live batteries are a necessity. Fast shipping and packaged well.

Pros
  • Loved it enough to by two of them!The percentage feature is sure handy!
Cons
  • It's erratic. All over the place. Went to return it, well, you can guess the rest.

Revainrating 1 out of 5

Don’t bother in my review

This battery tester is no more than an expensive volt meter. Capacity reading is a joke! Don’t know how this test the capacity of a battery but not accurate. the resistance part of measuring is also a joke. When the battery is fully charged the resistance is high and when the battery is discharged the resistance reads low?

Pros
  • This is a great meter with a great price. It works as advertised.
Cons
  • The battery tester may require a lot of effort to use.

Revainrating 5 out of 5

Great Battery Tester

I use it for checking my batteries AAA, AA, C, D, and the rechargeable Batteries on my surveillance cameras. That's my feedback.

Pros
  • ★ WIDE COMPATIBILITY: The easy-to-use battery tester with test leads, not only works all common batteries but also has a quality feel ensures hold up to long use. It fully works with A, AA, AAA, AAAA, C, SC, D, 9V, 3.7V Li-ion 26650, 21700, 18650, 16340(CR123), 10440, CR2, CRV3, 2CR5, CR-P2, A10, A13, and also handles a very wide range of button cells(LR621, CR2032) etc.
Cons
  • The tester may be too bulky and take up too much space.

Revainrating 4 out of 5

Good universal tester.

Meter will test all types of batteries. Seems quite accurate. I compared known weak batteries against new. The tester may not be able to check batteries that are leaking..

Pros
  • Its portability makes it perfect for outdoor activities such as camping, hiking or fishing
Cons
  • The tester may not be able to check batteries that are leaking.

Revainrating 5 out of 5

This is the battery tester you want

This tester is just what I wanted. It will check all types of small batteries and tell you the state of charge and power left. Highly recommended.

Pros
  • Has allowed me to keep batteries that I thought were dead and would have otherwise tossed out.
Cons
  • Hard to see unlit screen. Changes reading values like the wind changes direction at an airfield